Improvement in processes of ornamenting dry paper



G. La MON'TE & J. H. HALL.

PROCESS OF ORNAMENTING DRY PAPER.

N 171,QZ 6 Patented Dec.14,187'5.

lfimw'ses: Imerziwm NPETEHS, PHQTG-UTHUGRAPHER, WASHINGTON. D C

UNITED STATES PATENT OFFICE.

GEORGE LA MONTE AND JOHN H. HALL, OF NEW YORK, N. Y.

IMPROVEMENT lN PROCESSES OF ORNAMENTING DRY PAPER.

Specification forming part of Letters Patent No. 171,026, dated December14, 1875; application filed December 8, 1875.

To all whom it may concern:

Be it known that we, GEORGE LAMONTE and JOHN H. HALL, of the city,county, and State of New York, have'invented an Improvement inOrnamenting Paper, of which the following is a specification The objectof this invention is the production of an ornamented or figuredwritingpaper, such as is known to the trade as fancy paper, and whichhas a comparatively opaque body, in which the pattern or ornamentationappears in translucent lines. Such paper is commonly produced by theprocess known as water-marking, which consists in imparting the patternor figure to the web of pulp before it has been pressed and calendered,by means of a dandy-roll, which from its nature, and the time of itsapplication to the paper that is, when the paper is in a semi-fluid orpulpy state-displaces the stock throughout the portions of it which comeinto contact with the pattern-roll, the result being a paper whose bodyis thinnest wherever its ornamental pattern appears. A figured paper hasalso been produced by what is known as the plating process, whichconsists in pressing the paper while dry between plates, one at least ofwhich is ornamented with the figure desired to be imparted to the paper.

A process for ornamenting paper is described in the Patent No. 159,515,granted to us February 9, 1875, in which the paper takenjust as it comesfrom the driers is dampened and passed between a figured and a plaincalender-roll, by which means the ornamental pattern is impressed intothe damp paper, aft-er which it is dried. It is then passed through anumber of plain calender-rolls sufficient to impart a high and equalfinish to the general surface, which produces a paper in which theornamental figures are translucent while the general body is opaque.

Our invention relates to an improvement upon these processes, but moreparticularly the last; and it consists in ornamentin g paper by passingit while in a dry state between two or more rolls, one of which carriesa pattern or figure.

An apparatus suitable to the practical carrying out of this process isshown in the annexe drawings, in which- Figure 1 illustrates a stack ofcalenders, the upper one of which carries projections which form apattern and Fig. 2, a vertical section thereof.

The calenders composing this stack are numbered from 1 to 7, and areprovided, as is usual, with journals which rest in loose boxes 10,supported in a suitable frame-work, 8. They are adjustable by means ofscrews 9, and have a rotary motion, derived from their frictionalcontact with each other and the lowermost roll 7, to which the power isap plied through a gear-wheel. 11, connected with a suitable motor.

The paper is taken in a continuous length from the paper-machine afterit has passed the driers, when, as is well understood by paper-makers,it will have a dead or unfinished appearance. Or the paper may betreated in sheet form; but, in consequence of the labor necessitated byfeeding sheets, it is preferable to operate upon a web or long length.Pa per produced as above described is ordinarily finished by calenderingits surface by submitting it to the pressure of calenderingrolls.

By our process it is first figured by passing it between a'pair ofrolls, one of which has a patterned surface, as at 1 in the drawing. Itthus has the desired pattern or ornamental figure impressed in its body.The stock at the parts of it which have thus been brought into contactwith the pattern is consolidated to a great degree, and theornamentation thereby produced will not be obliterated by the finishingoperation of calendering the general surface of the paper. accomplishedby passing the ornamented sheet or web of paper through two or morecalenderrolls having plain surfaces, as illustrated in Fig. 2, 'wheresuch rolls are marked 2 to 7, the paper being shown at 12 as entering astack of calenders, and at 14 as emerging therefrom. The quality ordegree of finish required for the general surface is governed by thenum- This finishing is ber of times the paper is passed through the ingits general surface between calender-rolls, substantially as shown anddescribed.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

GEO. LA MONTE. JOHN H. HALL.

Witnesses:

HENRY S. DAVIS, H. T. MUNSON.

